to be the first time Arroyo was hit or injured during his attack on the courthouse. Wilson was forced to take cover behind Arroyo's truck in a prone position and exchanged fire with Arroyo. As Arroyo began to approach Wilson's position, he stood up from behind cover and fired again, hitting Arroyo. Unknown to Wilson, Arroyo was wearing a bulletproof vest, rendering Wilson's shots ineffective. Arroyo eventually fired a shot that struck Wilson, who faltered and fell from the view of witnesses, face down behind Arroyo's truck. Arroyo then walked up to Wilson and fired three more shots at him, killing him. Pursuit and Arroyo's death Officers from the Tyler Police Department, including Officer Wayne Allen was operating the pursuit vehicle with Sergeant Rusty Jacks, a trained sniper armed with a Colt AR-15 rifle, as his passenger, soon arrived on the scene. After more than 116 rounds had been fired, Arroyo attempted to flee and a pursuit ensued. The pursuit continued from the city streets of Tyler to a nearby highway. At the terminus of the pursuit, Arroyo fired at the vehicle of Deputy Sheriff John Smith who had pulled closely behind Arroyo's truck during the pursuit. After taking fire, Deputy Smith returned fire with his vehicle still in motion and used his patrol car to ram Arroyo's truck. Arroyo stopped his vehicle, exited it, and attempted to fire upon Smith, whose patrol car had essentially come to a stop on the passenger side of Arroyo's truck after ramming it. Smith sped away to avoid Arroyo's shots and gunfire from other law enforcement officers, leaving Officers Allen and Jacks in the direct line of fire. With Arroyo now out of his vehicle, Sgt. Rusty Jacks exited Officer Allen's vehicle and fired five shots from his rifle, hitting Arroyo in the back of the head and killing him instantly as he attempted to get back into his vehicle. Aftermath The shooting was widely covered by national news organizations and video from the incident is readily accessible on the Internet. Mark Wilson has been widely credited as heroic for his actions, which are believed to have caused Arroyo to cease his attack and flee the area without murdering his son, and the Texas House unanimously adopted a resolution (HR. 740) on March 31, 2005, to honor him. Casualties Mark Alan Wilson and Maribel Estrada were killed at the shooting scene. David Hernandez